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authorLinus Torvalds <torvalds@linux-foundation.org>2022-10-21 15:14:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-10-21 15:14:14 -0700
commitd4b7332eef46ed403061e27b03c71ad26b2f5353 (patch)
tree8e6abe26a8fcf3c7c1f091d954fc12633b703c03 /block
parent294e73ffb0efac4c8bac2d9e6a896225098bd419 (diff)
parent2db96217e7e515071726ca4ec791742c4202a1b2 (diff)
Merge tag 'block-6.1-2022-10-20' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe: - NVMe pull request via Christoph: - fix nvme-hwmon for DMA non-cohehrent architectures (Serge Semin) - add a nvme-hwmong maintainer (Christoph Hellwig) - fix error pointer dereference in error handling (Dan Carpenter) - fix invalid memory reference in nvmet_subsys_attr_qid_max_show (Daniel Wagner) - don't limit the DMA segment size in nvme-apple (Russell King) - fix workqueue MEM_RECLAIM flushing dependency (Sagi Grimberg) - disable write zeroes on various Kingston SSDs (Xander Li) - fix a memory leak with block device tracing (Ye) - flexible-array fix for ublk (Yushan) - document the ublk recovery feature from this merge window (ZiyangZhang) - remove dead bfq variable in struct (Yuwei) - error handling rq clearing fix (Yu) - add an IRQ safety check for the cached bio freeing (Pavel) - drbd bio cloning fix (Christoph) * tag 'block-6.1-2022-10-20' of git://git.kernel.dk/linux: blktrace: remove unnessary stop block trace in 'blk_trace_shutdown' blktrace: fix possible memleak in '__blk_trace_remove' blktrace: introduce 'blk_trace_{start,stop}' helper bio: safeguard REQ_ALLOC_CACHE bio put block, bfq: remove unused variable for bfq_queue drbd: only clone bio if we have a backing device ublk_drv: use flexible-array member instead of zero-length array nvmet: fix invalid memory reference in nvmet_subsys_attr_qid_max_show nvmet: fix workqueue MEM_RECLAIM flushing dependency nvme-hwmon: kmalloc the NVME SMART log buffer nvme-hwmon: consistently ignore errors from nvme_hwmon_init nvme: add Guenther as nvme-hwmon maintainer nvme-apple: don't limit DMA segement size nvme-pci: disable write zeroes on various Kingston SSD nvme: fix error pointer dereference in error handling Documentation: document ublk user recovery feature blk-mq: fix null pointer dereference in blk_mq_clear_rq_mapping()
Diffstat (limited to 'block')
-rw-r--r--block/bfq-iosched.h4
-rw-r--r--block/bio.c2
-rw-r--r--block/blk-mq.c7
3 files changed, 6 insertions, 7 deletions
diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index 64ee618064ba..71f721670ab6 100644
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -369,12 +369,8 @@ struct bfq_queue {
unsigned long split_time; /* time of last split */
unsigned long first_IO_time; /* time of first I/O for this queue */
-
unsigned long creation_time; /* when this queue is created */
- /* max service rate measured so far */
- u32 max_service_rate;
-
/*
* Pointer to the waker queue for this queue, i.e., to the
* queue Q such that this queue happens to get new I/O right
diff --git a/block/bio.c b/block/bio.c
index 633a902468ec..57c2f327225b 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -741,7 +741,7 @@ void bio_put(struct bio *bio)
return;
}
- if (bio->bi_opf & REQ_ALLOC_CACHE) {
+ if ((bio->bi_opf & REQ_ALLOC_CACHE) && !WARN_ON_ONCE(in_interrupt())) {
struct bio_alloc_cache *cache;
bio_uninit(bio);
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 8070b6c10e8d..33292c01875d 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -3112,8 +3112,11 @@ static void blk_mq_clear_rq_mapping(struct blk_mq_tags *drv_tags,
struct page *page;
unsigned long flags;
- /* There is no need to clear a driver tags own mapping */
- if (drv_tags == tags)
+ /*
+ * There is no need to clear mapping if driver tags is not initialized
+ * or the mapping belongs to the driver tags.
+ */
+ if (!drv_tags || drv_tags == tags)
return;
list_for_each_entry(page, &tags->page_list, lru) {